The Purrified Air Dome Adapters for Booda covered litter boxes is designed to allow use of the filter on both large and small domed-shaped litter boxes such as the Petmate Booda and others. Depending on the size of your domed litter box, you will need to determine if you need the AC model, or the AR model. The large boxes -- the ones with the steps -- require the AR, while the smaller ones where the top of the entry way arc require the AC the cutout. Free shipping in United States.
They come with a seal, hook-and-loop fasteners to securely attach to the litter box and complete instructions.